<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录</title>

</head>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/jquery@3.2.1/dist/jquery.min.js"></script>
<script type="text/javascript">
    var msg = "{{$msg}}"
    if (msg != "") {
        alert(msg);
    }
</script>

<body>
<a target="_blank" href="/">ll</a>
</body>
</html>
